JP7216853B1 - Imaging devices and portable electronic devices - Google Patents

Abstract

An imaging device and a portable electronic device are disclosed. An imaging device includes a case having a housing cavity, a lens provided in the housing cavity, and an anti-vibration mechanism. an optical filter and a photosensor, wherein the first coil, the optical filter and the photosensor are all fixedly connected to the first movable part; the first magnet is fixedly connected to the first fixed part; The 1 coils are provided facing each other with a gap to drive the first movable portion so as to reciprocate in a plane orthogonal to the optical axis direction. Compared to the prior art, in the present invention, the first coil, the optical filter, and the photosensor are all fixedly connected to the first movable part, thereby realizing a low-profile and small-sized imaging device and simplifying the parts. can reduce the occupied space and improve the quality of the captured image. [Selection drawing] Fig. 5

Description

The present invention relates to the technical field of imaging devices, and more particularly to imaging devices and portable electronic devices.

With the rapid development of photography technology, imaging devices including lenses are widely applied in many different portable electronic devices, such as mobile phones, tablet computers, and so on.

Imaging devices applied to general portable electronic devices generally include an autofocus mechanism that adjusts the focus in the direction of the optical axis, and an image stabilization mechanism that moves and drives a plane perpendicular to the direction of the optical axis. .

The autofocus function is both formed by a coil and a magnet, with the coil fixed to the outer periphery of the lens support. When a current is applied to the coil, under the action of electromagnetic force, the coil can be focused by moving the lens support to move along the optical axis of the lens.

In addition, when the user takes an image while holding the electronic device in his or her hand, it is possible to correct the shaking of the imaging device caused by camera shake by driving the device in a direction perpendicular to the optical axis.

However, as a small device mounted on a portable electronic device, for example, the camera shake correction mechanism in an optical system with a long optical length such as a medium telephoto has problems such as a long drive amount and a large lens weight. Low profile and miniaturization were difficult issues.

In addition, since the autofocus mechanism that is driven along the optical axis and adjusts the focus and the image stabilization mechanism that is driven in a plane perpendicular to the optical axis are integrated, the natural vibrations of each are further suppressed. mechanism, lens centering adjustment mechanism, etc., the assembly tends to be difficult and the structural stability is low.

In the prior art, the IRCF frame is mounted with only the IRCF and is provided separately from the OIS drive frame, so tilt errors tend to occur between it and the sensor.

SUMMARY OF THE INVENTION In order to solve the above-described problems of the prior art, the present invention provides an imaging device and a portable electronic device capable of simplifying components, reducing the space occupied, and reducing the tilt error of the sensor. intended to provide

The present invention is an imaging device comprising a case having a housing cavity, a lens provided in the housing cavity, and a vibration isolation mechanism, wherein the vibration isolation mechanism includes a first movable portion, a first fixed portion, including a first coil, a first magnet, an optical filter and a photosensor;
wherein the first coil, the optical filter and the photosensor are all fixedly connected to the first movable part,
The first magnet is fixedly connected to the first fixed part,
The first magnet is provided facing the first coil with a space therebetween, thereby driving the first movable portion so as to reciprocate in a plane perpendicular to the optical axis direction. An imaging device is provided.

In the image pickup apparatus as described above, preferably, a first projection is provided projecting on the image side in the optical axis direction of the first movable portion, and the first projection is separated from the first movable portion. A first groove is recessed in the end face,
a second groove is recessed on the object side of the first fixing portion in the optical axis direction, the second groove corresponds to the first groove,
The photosensor is fixed to the first protrusion, and one end of the photosensor extends into the first groove and the other end of the photosensor extends into the second groove.

In the imaging device as described above, preferably, a stepped groove penetrates the first movable portion on the object side in the optical axis direction, and the stepped groove corresponds to the first groove and The optical filter is fixed in the stepped groove, and the optical filter and the photosensor are provided facing each other along the optical axis direction with a gap therebetween.

In the imaging device as described above, preferably, the first movable section is provided on the object side of the first fixed section in the optical axis direction,
The first coil is fixed to a side of the first movable part facing the first fixed part, the first coil is provided around the photosensor,
The first magnet is fixed to a side of the first fixed portion facing the first movable portion, and the first magnet corresponds to the first coil one-to-one.

In the imaging device as described above, preferably, a third groove is recessed on the image side in the optical axis direction of the first movable portion, and a magnetic yoke is fixed in the third groove, The magnetic yoke corresponds to the first coil one-to-one.

In the image pickup apparatus as described above, preferably, a second projection is provided projecting on the image side in the optical axis direction of the first movable portion, and the second projection is separated from the first movable portion. A fourth groove is recessed in the end face, a first plate is provided in the fourth groove,
A fifth groove is recessed on the object side of the first fixing portion in the optical axis direction, the fifth groove corresponds to the fourth groove one-to-one, and a second plate is provided in the fifth groove. be
A ball is provided between the first plate and the second plate, and an end of the ball adjacent to the first movable portion extends into the fourth groove and extends into the first plate. One end of the ball, which is rollingly connected and which is close to the first fixed portion, extends into the fifth groove and is rollingly connected to the second plate, so that the first movable portion is It enables reciprocating movement in a plane perpendicular to the optical axis direction.

In the imaging device as described above, preferably, at least a portion of the case is made of a metal material, and a heat-conducting member is provided in the housing cavity, and the heat-conducting member Maintaining contact with both the photosensor and the case conducts heat from the photosensor to the case.

In the imaging apparatus as described above, preferably, an autofocus mechanism for driving the lens to perform autofocus is preferably further provided in the accommodation cavity, and the autofocus mechanism comprises: 2 movable parts, a second fixed part, a second coil, and a second magnet,
Here, both the lens and the second coil are fixedly connected to the second movable part,
The second magnet is fixedly connected to the second fixed part,
The second magnet is provided facing the second coil with a gap therebetween, thereby driving the second movable portion to reciprocate along the optical axis direction.

An imaging device as described above, wherein preferably said lens is a zoom lens.

An imaging device as described above, wherein preferably said lens is a retractable lens.

The present invention further provides a portable electronic device including the aforementioned imaging device.

Compared to the prior art, the present invention realizes a low-profile and small-sized imaging device and simplifies parts by fixedly connecting the first coil, the optical filter, and the photosensor to the first movable part. , the occupied space can be reduced and the quality of captured images can be improved.

1 is a perspective view of the overall structure of an imaging device according to an embodiment provided in the present invention; FIG. 1 is a three-dimensional exploded view of the overall structure of an imaging device according to an embodiment provided in the present invention; FIG. 1 is a side view of the overall structure of an imaging device according to an embodiment provided in the present invention; FIG. 1 is a plan view of the overall structure of an imaging device according to an embodiment provided in the present invention; FIG. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4; FIG. 6 is an enlarged structural schematic diagram of a portion C in FIG. 5 ; FIG. 4 is a perspective view of the first movable part of the imaging device of the embodiment provided in the present invention; FIG. 4B is a schematic view of another viewing angle of the first movable part of the imaging device of the embodiment provided in the present invention; FIG. 9 is a cross-sectional view taken along the line BB in FIG. 8; FIG. 2 is a perspective view of the overall structure of the image pickup apparatus of the embodiment provided in the present invention, with a part of the case hidden; 1 is a structural schematic diagram of a zoom lens structure of an embodiment provided in the present invention; FIG. 1 is a schematic diagram of a zoom lens contraction of an example zoom lens structure provided in the present invention; FIG. 1 is a structural schematic diagram of a retractable lens structure of an embodiment provided in the present invention; FIG. 1 is a perspective view of a portable electronic device according to an embodiment provided in the present invention; FIG.

The embodiments described below with reference to the drawings are exemplary and should be construed as merely illustrative of the present invention and not limiting thereof.

As shown in FIGS. 1 to 10, an embodiment of the present invention provides an imaging device 10, which includes a case 100 having a housing cavity 100a, a lens 200 and a lens 200 provided in the housing cavity 100a. The lens 200 and the vibration isolation mechanism 300 are provided in order along the optical axis 500 direction, and the lens 200 is positioned on the object side in the optical axis 500 direction.

Here, the case 100 includes a top wall 101, a bottom wall 102 and a peripheral wall 103, the peripheral wall 103 is connected to the top wall 101 and the bottom wall 102, and the receiving cavity 100a includes the top wall 101, the bottom wall 102 and the peripheral wall 103. , and a through hole 104 communicating with the receiving cavity 100a is formed in the top wall 101, and is used for at least a portion of the lens 200 to protrude.

The anti-vibration mechanism 300 includes a first movable portion 301, a first fixed portion 302, a first coil 306, a first magnet 307, an optical filter 303, and a photosensor 304. The first fixed portion 302 is located inside the housing cavity 100a. The first movable part 301 is fixed, the first movable part 301 is movably provided in the receiving cavity 100a, the first movable part 301 can move in a plane orthogonal to the direction of the optical axis 500, and the first magnet 307 It is fixed to the fixed part 302 , and the first coil 306 , the optical filter 303 and the photosensor 304 are all fixedly connected to the first movable part 301 . The optical filter 303 is located closer to the object side in the direction of the optical axis 500 than the photosensor 304 . In some embodiments, the optical filter 303 is an infrared cut optical filter 303, which normally protects the photosensor 304 and blocks some wavelengths of light, filtering unwanted light and leaving visible Allow only light to pass through.

Signal lines and power lines of the first coil 306, the optical filter 303, and the photosensor 304 are provided outside the anti-vibration mechanism 300 via the first flexible substrate 308 so as not to interfere with the operation of the anti-vibration mechanism 300. be able to. Preferably, a space is provided in the accommodation cavity 100a for free movement so that at least the bending surface of the first flexible substrate 308 does not hinder movement when moving in a plane.

The operating principle of the anti-vibration mechanism 300 is as follows. That is, when the first coil 306 is energized, the Lorentz force is generated in the first coil 306 due to the interaction between the magnetic field of the first magnet 307 and the current flowing through the first coil 306 . The direction of the Lorentz force is perpendicular to the direction of the magnetic field of the first magnet 307 and the direction of the current flowing through the first coil 306 . Since the first magnet 307 is fixed, a reaction force acts on the first coil 306 . The reaction force serves as a driving force for the first movable portion 301, and the first movable portion 301 including the first coil 306 moves in a plane perpendicular to the optical axis 500 direction, thereby performing image stabilization correction.

In this embodiment, the image stabilization mechanism 300 corrects camera shake by moving the optical filter 303 and the photosensor 304 in a plane perpendicular to the optical axis 500 with the first movable portion 301 , while the first coil 306 , the optical By fixedly connecting both the filter 303 and the photosensor 304 to the first movable part 301, the height and size of the imaging device 10 can be reduced, the components can be simplified, the occupied space can be reduced, and the tilt error of the sensor can be reduced. can be reduced and the quality of the captured image can be improved.

Furthermore, as shown in FIGS. 7 to 9, in some embodiments, the main body of the first movable part 301 has a plate-like structure, and the first movable part 301 has a first movable part 301 on the image side in the optical axis 500 direction. A first protrusion 3011 is provided protruding, and the first protrusion 3011 is preferably positioned at the center of the first movable portion 301 . A first groove 3012 is recessed in the end surface of the first projection 3011 away from the first movable portion 301 , and the first groove 3012 is for accommodating the partial structure of the photosensor 304 . One end of the photosensor 304 extends into the first groove 3012 , thereby further compressing the space occupied by the photosensor 304 in the direction of the optical axis 500 and protecting the photosensor 304 . The shape and dimensions of the first groove 3012 can both be determined based on the shape and dimensions of the photosensor 304, and are not limited here.

A second groove 3021 is recessed on the object side in the direction of the optical axis 500 in the first fixing portion 302 , the second groove 3021 corresponds to the first groove 3012 , and the second groove 3021 accommodates the partial structure of the photosensor 304 . One end of the photosensor 304 extends into the second groove 3021 , thereby further reducing the space occupied by the photosensor 304 in the direction of the optical axis 500 and protecting the photosensor 304 . can fulfill The shape and size of the second groove 3021 can both be determined based on the shape and size of the photosensor 304, and are not limited herein. The photosensor 304 must be larger than the size of the structure extending into the second groove 3021 so that the photosensor 304 is not prevented from moving laterally within the second groove 3021 and the inner wall of the second groove 3021 restricting the movement of photosensor 304 is avoided.

By accommodating the photosensor 304 in the first groove 3012 and the second groove 3021 , there is an overlapping area between the projection of the photosensor 304 in the direction of the optical axis 500 and the first movable part 301 and the first fixed part 302 . However, by overlapping the thicknesses of the first movable portion 301, the first fixed portion 302, and the photosensor 304, the space occupied by the anti-vibration mechanism 300 is reduced, which is advantageous for miniaturization of the image pickup apparatus 10, and also reduces the number of members. and the tilt error of the photosensor 304 with respect to the optical axis 500 can be effectively combined. 10 can improve the stability against drop impact.

Further, as shown in FIGS. 7 to 9, a stepped groove 3013 passes through the first movable portion 301 on the object side in the direction of the optical axis 500, and the stepped groove 3013 is opened at a position corresponding to the first projection 3011. The groove 3013 corresponds to the first groove 3012 and penetrates until it communicates with the first groove 3012, the optical filter 303 is fixed in the stepped groove 3013, and the optical filter 303 and the photosensor 304 are arranged along the optical axis 500 direction. The optical filter 303 is provided facing and spaced apart, the optical filter 303 is closer to the object side in the direction of the optical axis 500, and there is an overlap region between the projection of the optical filter 303 in the direction of the optical axis 500 and the first movable part 301, By superimposing the thicknesses of the first movable portion 301 and the optical filter 303, the space occupied by the anti-vibration mechanism 300 is reduced, which is advantageous for downsizing the imaging device 10, reducing the number of members, and increasing the thickness of the optical filter 303. It is possible to effectively combine the effect of reducing the tilt error with respect to the axis 500, improve the mounting accuracy of the optical filter 303, improve the rigidity of the entire optical filter 303, and stabilize the imaging device 10 against drop impact. can be improved.

Furthermore, as shown in FIGS. 5 and 6, the first movable portion 301 is provided on the object side of the first fixed portion 302 in the direction of the optical axis 500, and the first coil 306 is the first coil 306 in the first movable portion 301. The first coil 306 is provided around the photosensor 304 , the first magnet 307 is fixed on the side of the first fixed portion 302 facing the first movable portion 301 , and the first magnet 307 is fixed on the side facing the fixed portion 302 . The first magnets 307 correspond one-to-one with the first coils 306. In some embodiments, both the first magnets 307 and the first coils 306 are provided in multiple numbers, and the first magnets 307 and the first coils 306 are provided in multiple numbers. The coils 306 are in one-to-one correspondence, preferably four first coils 306 are provided, and the four first coils 306 are equally spaced around the photosensor 304, as will be understood by those skilled in the art. , the number and distribution of the first coils 306 can all be determined according to the actual situation and are not limited herein.

Further, as shown in FIGS. 5, 6 and 7, a third groove 3014 is recessed on the image side of the first movable portion 301 in the direction of the optical axis 500, and the magnetic yoke 305 is fixed in the third groove 3014. , the magnetic yoke 305 corresponds to the first coil 306 one-to-one. By providing the magnetic yoke 305 in the third groove 3014 , the surface of the magnetic yoke 305 becomes lower than the surface of the first movable portion 301 , which is also advantageous for miniaturization of the imaging device 10 .

By attaching the magnetic yoke 305 to the first movable part 301, the magnetic yoke 305 and the first magnet 307 always have a magnetic spring effect that pulls the anti-vibration mechanism 300 toward the center of the optical axis 500, so that backlash can be effectively eliminated. The tilt of the first movable portion 301 with respect to the optical axis 500 can be reduced. At the same time, since the first coil 306, the first magnet 307, and the magnetic yoke 305 can perform backlash and biasing, no other member for biasing is required, contributing to a significant reduction in the number of parts. , miniaturization, and simplification of assembly can be realized.

Further, as shown in FIGS. 5 to 9, a second projection 3015 is provided on the image side of the first movable portion 301 in the optical axis 500 direction. Four grooves 3016 are recessed, a first plate 312 is provided in the fourth groove 3016 , and the first plate 312 is fixed to the bottom surface of the fourth groove 3016 .

A fifth groove 3022 is recessed on the object side in the direction of the optical axis 500 in the first fixing portion 302 . is provided, and the second plate 313 is fixed to the bottom surface of the fifth groove 3022 .

A ball 314 is provided between the first plate 312 and the second plate 313, a plurality of the first plate 312, the second plate 313, and the balls 314 are provided, and the plurality of the first plates 312, The plurality of second plates 313 and the plurality of balls 314 are in one-to-one correspondence, thereby providing a well-balanced and evenly distributed supporting force and preventing the first movable part 301 from tilting during movement. One end of the ball 314 adjacent to the first movable portion 301 extends into the fourth groove 3016 to be rollingly connected to the first plate 312 and to the first fixed portion 302 of the ball 314. The adjacent one end extends into the fifth groove 3022 and is rollingly connected to the second plate 313, thereby allowing the first movable part 301 to reciprocate in a plane orthogonal to the direction of the optical axis 500. to

By accommodating the ball 314 in the fourth groove 3016 and the fifth groove 3022, it is possible to limit the movement of the ball 314 and prevent the movement width of the first movable part 301 from becoming too large, There is an overlapping region between the projection in the direction of the optical axis 500 and the first movable part 301 and the first fixed part 302. , the space occupied by the ball 314 can be reduced, which is advantageous in reducing the size of the imaging device 10 and improving the protective effect against drop impact.

Further, as shown in FIG. 5, a third projection 3017 is projected on the object side of the first movable portion 301 in the direction of the optical axis 500, and the third projection 3017 is covered with the first anti-shake buffer member 311. In some embodiments, a plurality of third protrusions 3017 are provided, and the plurality of third protrusions 3017 are annularly spaced on the first moving part 301 to improve evenly distributed cushioning and supporting action; As those skilled in the art know, the number and distribution of the third protrusions 3017 can both be determined according to the actual situation and are not limited herein. It is preferable that the first anti-vibration cushioning member 311 is a damping gel, and a more accurate anti-vibration function is achieved by generating a damping effect that controls the ripple operation against sudden energization of the anti-vibration mechanism 300. It becomes possible to have

In some embodiments, as shown in FIG. 1, the first coil 306 is equipped with a first position sensitive element 310 capable of detecting the magnetic flux of the first magnet 307, preferably the first position sensitive element 310 is: At least two are provided, and by detecting the magnetic flux of the first magnet 307, accurate position detection and anti-vibration control of the first movable portion 301 can be performed.

According to the technical proposals of the above-described embodiments, it is possible to achieve the objective of realizing a more efficient anti-vibration mechanism 300 in a portable electronic device, which is becoming more and more miniaturized, and improve the quality of captured images.

As shown in FIGS. 1, 5 and 10, an autofocus mechanism 400 for driving the lens 200 and performing autofocus is further provided in the housing cavity 100a. Since the components are separated to suppress the natural vibration, the design difficulty is reduced, and at the same time, there is no need to move the lens 200 three-dimensionally, and the centering of the lens 200 is accordingly facilitated.

Further, the autofocus mechanism 400 includes a second movable portion 401, a second fixed portion 402, a second coil 403, and a second magnet 404, and the second movable portion 401 reciprocates along the direction of the optical axis 500. Both the lens 200 and the second coil 403 are connected to the second movable part 401 .

A cylindrical through groove penetrates the middle part of the second movable part 401, the lens 200 is fixed to the inner peripheral surface of the through groove by adhesion, screwing or other connection method, and the second coil 403 is used for focusing. When viewed along the direction of the optical axis 500, the second coil 403 has a polygonal shape such as a quadrangular structure, and the second coil 403 is the outer wall surface of the second movable portion 401. When viewed along the direction of the optical axis 500 while being fitted on the second fixed part 402, the second fixed part 402 has a rectangular housing structure, and the second movable part 401 extends into the housing of the second fixed part 402. , the second magnet 404 is provided on the inner wall surface of the second fixing portion 402, the second magnet 404 is provided around the second coil 403, the first magnet 307, the first coil 306 and the second magnet 404 are , are spaced apart in order along the optical axis direction.

When the autofocus mechanism 400 automatically focuses, the second coil 403 is energized. A Lorentz force is generated in the second coil 403 by the interaction between the magnetic field of the second magnet 404 and the current flowing in the second coil 403 . The direction of the Lorentz force is perpendicular to the direction of the magnetic field of the second magnet 404 and the direction of the current flowing through the second coil 403 . Since the second magnet 404 is fixed, the reaction force acts on the second coil 403 . This reaction force serves as a driving force for the second movable portion 401, and the second movable portion 401 having the second coil 403 moves in the direction of the optical axis 500, thereby performing focusing.

1 and 10, the autofocus mechanism 400 further includes an elastic support portion 405, and both ends of the elastic support portion 405 are connected to the second movable portion 401 and the second fixed portion 402, respectively. Thereby, the second movable part 401 can be suspended in the accommodation cavity 100a, and the lens 200 can be held in a suspended state by the elasticity of each part without the electromagnetic force acting thereon.

In some embodiments, the elastic support part 405 includes an upper leaf spring 4051 and a lower leaf spring 4052, and the upper leaf spring 4051 is positioned on the side of the second movable part 401 in the direction of the optical axis 500 that is closer to the object side. Both ends of the upper leaf spring 4051 are connected to the upper end surfaces of the second movable portion 401 and the second fixed portion 402, respectively, and the upper end surfaces of the second movable portion 401 and the second fixed portion 402 are provided with a plurality of positioning projections. The upper leaf spring 4051 is provided with a positioning through-groove that matches the positioning protrusion. , the lower leaf spring 4052 is provided to face the upper leaf spring 4051, and both ends of the lower leaf spring 4052 are connected to the lower end surfaces of the second movable part 401 and the second fixed part 402, respectively. A plurality of positioning protrusions are provided on the lower end surface of the second fixing part 402, and positioning through grooves matching the positioning protrusions are provided on the lower leaf spring 4052. As shown in FIG.

Furthermore, as shown in FIG. 1, a second position detection element 406 capable of detecting the magnetic flux of the second magnet 404 is mounted inside the second coil 403, and by detecting the magnetic flux of the second magnet 404, the lens 200 is Accurate position detection and focus control can be performed for

As shown in FIGS. 1, 5 and 6, the signal lines and power lines of the second position detection element 406 can be provided outside the autofocus mechanism 400 via the second flexible substrate 407. Preferably, The second flexible substrate 407 is integrated with the first flexible substrate 308, and when a driving integrated circuit for control is mounted on the first flexible substrate 308, power is supplied for autofocus and the signal of the second position detection element 406 is fed back. It is possible to perform servo control, etc.

Furthermore, as shown in FIG. 1, a second vibration-relief cushioning member 408 is provided in the second movable portion 401, and the second vibration-reduction cushioning member 408 is preferably damping gel. A more accurate autofocus function can be obtained by generating a damping effect that controls the ripple operation against the sudden energization of the lens.

In the prior art, as the size of the image sensor assembly increases, the amount of heat generated also increases. There is a problem that the element may be destroyed by its own heat. In order to solve the technical problem of exhausting heat from the imaging device assembly, at least a part of the case 100 is made of a metal material with high thermal conductivity, and the part can be adjacent to the photosensor 304. Preferably, for example, a part is located on the bottom wall 102, or the whole bottom wall 102 is made of metal material, and a heat-conducting member 309 is provided in the receiving cavity 100a, and the heat-conducting member 309 is connected to the photosensor 304 and the case. 100 conducts the heat of the photosensor 304 to the case 100 .

As a result, it is not necessary to adopt a new heat dissipation structure or to introduce many members such as a fan for air circulation to dissipate heat. It has the advantage of having a high heat dissipation effect and contributing to miniaturization and thinning.

In some embodiments, the thermally conductive member 309 is heat dissipating gel, which not only can efficiently transfer the heat generated by the photosensor 304 to the case 100, but the heat dissipating gel can also serve as an anti-vibration mechanism. By creating a damping effect that controls the ripple action against the sudden energization of 300, it is possible to have a more accurate anti-vibration function. It is obvious to those skilled in the art that the heat-conducting member 309 has more embodiments, and will not be listed here one by one.

The lens 200 of the previous embodiment is an autofocus lens, and in some embodiments, the anti-vibration mechanism 300 can also be applied to a zoom lens structure 60, as shown in FIGS. , the zoom lens structure 60 includes a zoom lens 600, the zoom lens 600 includes at least two sets of lenses spaced along the optical axis, the zoom lens structure 60 includes two sets of lenses. Zooming is achieved by changing the spacing of the lenses along the optical axis direction. Specifically, a zoom lens 600 including multiple sets of lenses can perform telescoping motion, and the left side of FIG. A side view is shown when the lens 600 is extended, and a side view when the zoom lens 600 is retracted is shown on the right. The provision of the zoom lens structure 60 not only contributes to improving the photographing effect of the imaging device, but is also advantageous in improving the user's experience.

As shown in FIG. 13, the anti-vibration mechanism 300 can also be applied to a retractable lens structure 70, which includes a retractable lens 700 that changes the direction of the optical path. at least one prism for. By providing a prism capable of changing the optical path, it is advantageous to reduce the volume of the imaging device, and to realize the downsizing and portability of the imaging device.

Based on the above embodiments, as shown in FIG. 14, the present invention further provides a portable electronic device 20, such as a smart phone or a tablet device, both of which include the imaging device 10 described above.

Although the structure, features and effects of the present invention have been described in detail above based on the embodiments shown in the drawings, the above are only preferred embodiments of the present invention, and the present invention is shown in the drawings. It should be understood that the scope of implementation is not limited. Any change made on the basis of the concept of the present invention or modified equivalent implementations of equivalent changes, if still not beyond the gist contained in the description and drawings, shall fall within the protection scope of the present invention. Should be.

DESCRIPTION OF SYMBOLS 10... Imaging device 20... Portable electronic device 100... Case, 100a... Accommodating cavity, 101... Top wall, 102... Bottom wall, 103... Peripheral wall, 104... Through hole 200... Lens 300... Antivibration mechanism, 301... 1st Movable part 3011... First protrusion 3012... First groove 3013... Stepped groove 3014... Third groove 3015... Second protrusion 3016... Fourth groove 3017... Third protrusion 302... First fixing part , 3021 Second groove 3022 Fifth groove 303 Optical filter 304 Photosensor 305 Magnetic yoke 306 First coil 307 First magnet 308 First flexible substrate 309 Heat Conductive member 310 First position detecting element 311 First steady-state cushioning member 312 First plate 313 Second plate 314 Ball 400 Autofocus mechanism 401 Second movable part , 402... Second fixing part 403... Second coil 404... Second magnet 405... Elastic support part 4051... Upper leaf spring 4052... Lower leaf spring 406... Second position detecting element 407... Second Flexible substrate 408 Second anti-shake buffer member 500 Optical axis 60 Zoom lens structure 600 Zoom lens 70 Collapsible lens structure 700 Collapsible lens.

Claims (10)

An imaging device,
A case having an accommodation cavity, a lens and an anti-vibration mechanism provided in the accommodation cavity,
The anti-vibration mechanism includes a first movable part, a first fixed part, a first coil, a first magnet, an optical filter and a photosensor,
The first coil, the optical filter, and the photosensor are all fixedly connected to the first movable part,
The first magnet is fixedly connected to the first fixed part,
the first magnet and the first coil are provided facing each other with a gap so that the first movable portion is driven to reciprocate in a plane perpendicular to the optical axis direction;
A first projection is provided projecting on the image side in the optical axis direction of the first movable portion, and a first groove is provided recessedly on an end surface of the first projection away from the first movable portion,
a second groove is recessed on the object side of the first fixing portion in the optical axis direction, the second groove corresponds to the first groove,
The imaging device according to claim 1, wherein the photosensor is fixed to the first protrusion, one end of the photosensor extends into the first groove, and the other end of the photosensor extends into the second groove. A stepped groove passes through the first movable portion on the object side in the optical axis direction, the stepped groove passes through until it corresponds to the first groove and communicates with the first groove, and the optical filter comprises the 2. The image pickup apparatus according to claim 1, wherein the optical filter and the photosensor are fixed in a stepped groove, and the optical filter and the photosensor are provided facing each other along the optical axis direction with a gap therebetween. The first movable part is provided on the object side in the optical axis direction of the first fixed part,
The first coil is fixed to a side of the first movable part facing the first fixed part, the first coil is provided around the photosensor,
2. The first magnet is fixed to a side of the first fixed portion facing the first movable portion, and the first magnet and the first coil are in one-to-one correspondence. imaging device. A third groove is recessed on the image side in the optical axis direction of the first movable portion, a magnetic yoke is fixed in the third groove, and the magnetic yoke corresponds to the first coil one-to-one. 2. The imaging device according to claim 1, wherein: A second projection is provided projecting on the image side in the optical axis direction of the first movable portion, and a fourth groove is provided recessedly on an end surface of the second projection separated from the first movable portion. A first plate is provided,
A fifth groove is recessed on the object side of the first fixing portion in the optical axis direction, the fifth groove corresponds to the fourth groove one-to-one, and a second plate is provided in the fifth groove. be
A ball is provided between the first plate and the second plate, and one end of the ball adjacent to the first movable portion extends into the fourth groove and the first plate. and one end of the ball proximate to the first fixed portion extends into the fifth groove and is rollingly connected to the second plate, whereby the first movable portion is 2. The imaging device according to claim 1, wherein the imaging device can reciprocate in a plane orthogonal to the optical axis direction. At least a portion of the case is made of a metal material, and a heat-conducting member is provided in the housing cavity, and the heat-conducting member contacts both the photosensor and the case to 2. The imaging device according to claim 1, wherein heat of the photosensor is conducted to the case. An autofocus mechanism for driving the lens to perform autofocus is further provided in the accommodation cavity, and the autofocus mechanism includes a second movable portion, a second fixed portion, a second coil, and a second contains a magnet,
Both the lens and the second coil are fixedly connected to the second movable part,
The second magnet is fixedly connected to the second fixed part,
The second magnet and the second coil are provided facing each other with a space therebetween so that the second movable portion is driven to reciprocate along the optical axis direction. Item 1. The imaging device according to item 1. 7. The imaging apparatus according to claim 1, wherein said lens is a zoom lens. The imaging device according to any one of claims 1 to 6, wherein the lens is a lens structure including at least one prism for changing the direction of the optical path . A portable electronic device comprising the imaging device according to any one of claims 1 to 7.

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